625668724 has 24 divisors (see below), whose sum is σ = 1148938560. Its totient is φ = 297553344.

The previous prime is 625668709. The next prime is 625668737. The reversal of 625668724 is 427866526.

625668724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×625668724² = 782922704383576352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2529 + ... + 35464.

It is an arithmetic number, because the mean of its divisors is an integer number (47872440).

Almost surely, 2^625668724 is an apocalyptic number.

It is an amenable number.

625668724 is a deficient number, since it is larger than the sum of its proper divisors (523269836).

625668724 is a wasteful number, since it uses less digits than its factorization.

625668724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38199 (or 38197 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 625668724 is about 25013.3709043783. The cubic root of 625668724 is about 855.2927985021.

The spelling of 625668724 in words is "six hundred twenty-five million, six hundred sixty-eight thousand, seven hundred twenty-four".